Evolutionary Terms

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Across
  1. 1. The external resemblance of an animal to another animal.
  2. 3. Drift A change in the frequency of in the genes of a population due to changes that happened during natural selection.
  3. 4. Adaptation When an animal adapts to the environment by the way its body is built.
  4. 8. Reproduction The process of nature when only the organisms who are best suited to their environment survive and reproduce.
  5. 10. Selection When humans breed other animals and plants for certain traits.
  6. 11. Structures A structure or organ that within time has either diminished or stopped being useful.
  7. 12. Structures Features of different species that are similar in function but not in structure.
  8. 14. An organisms ability to survive and reproduce in its environment.
Down
  1. 1. A change in the process of nature or an individual.
  2. 2. Adaptation A change in an organism due to changes in its conditions.
  3. 5. When an animal hides/disguises itself from a predator.
  4. 6. When an organism becomes better suited to the environment during a process of change.
  5. 7. The gradual development of a species over time.
  6. 9. The periodic movement of animals from one place to another.
  7. 13. Selection When organisms adapt to the environment and reproduce.